Amplify Light Waves Chapter 1

The movement of energy can be tracked by observing...

• how much light comes from a light source.

• the changes the energy causes to matter/material.

• the evidence of energy left behind.

• the changes the light causes to energy.

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Light carries _______ that can cause materials to change.

• waves

• particles

• amplitudes

• energy

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When a material absorbs energy from light, the energy causes...

• the material to change.

• the light to reflect.

• the light to change.

• the material to give off energy.

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Which country has the highest rate of skin cancer in the world?

• Brazil

• Australia

• Japan

• Egypt

Light must be _______________ in order for the material to be affected by light.

• reflected

• penetrated

• absorbed

• surrounded

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NGSS.MS-PS4-2

1. Your friends say that they saw a special nail polish that changes color when it is out in the sun. Can light from the sun cause the nail polish to change color?

• No. Light is not a physical thing, so it cannot change physical things like nail polish.

• Yes. Light from the sun can pull energy out of the nail polish, causing it to change color.

• Yes. The nail polish can take in energy from the light, causing it to change color.

• No. Light can only change things by warming them up, so it cannot cause the nail polish to change color.

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the ability to make things move or change

• energy

• light

• frequency

• wave

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1. If a car sits out in the sun every day for a long time, can light from the sun damage the car’s paint?

• Yes. The paint can take in energy from the light, causing it to be damaged.

• No. Light can only change things by warming them up, so it cannot damage the car’s paint.

• No. Light is not a physical thing, so it cannot change physical things like paint.

• Yes. Light from the sun can pull energy out of the paint, causing it to be damaged.

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In Lesson 1.2, you observed that a solar-powered toy moved when you shined a flashlight on it.

Select ALL of the statements below that accurately explain how this happened.

• Light from the flashlight carried energy.

• There was energy in the toy that was activated by the light.

• Energy from the flashlight was absorbed by the toy.

• The flashlight absorbed energy from the toy.

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A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug’s color to fade over time. Can light from the sun cause the rug’s color to fade?

• No. Light is not a physical thing, so it cannot change physical things like rugs.

• No. Light can only change things by warming them up, so it cannot cause the rug’s color to fade.

• Yes. The rug can take in energy from the light, causing the rug’s color to fade.

• Yes. Light from the sun can pull energy out of the rug, causing the rug's color to fade.